This vintage set of 4 Corelle coffee mugs by Corning features a Butterfly Gold pattern in a D shape design. Made in the USA in the 1970s, these round mugs have a retro style with a glossy finish. With a capacity of 10 oz, they are microwave safe and made of glass, making them suitable for all occasions. The white and gold color scheme, along with the butterfly theme, adds a touch of elegance to your morning coffee routine.